Final answer:
The area of rectangle BCEF is 12 square units.
Step-by-step explanation:
To find the area of rectangle BCEF, we need to find the length and width of the rectangle. BCEF is formed by the line segment BE and the line segment CF. To find the length of BE, we subtract the x-coordinates of B and E: 0 - (-2) = 2 units. To find the length of CF, we subtract the x-coordinates of C and F: 4 - (-2) = 6 units. Therefore, the length of BCEF is 6 units and the width is 2 units. The area of a rectangle is given by the formula length × width. So, the area of rectangle BCEF is 6 × 2 = 12 square units.